<template>
  <div class="login-container">
    <el-form
      class="login-form"
      ref="loginFromRef"
      :model="loginForm"
      :rules="loginRules"
    >
      <div class="title-container">
        <h3 class="title">{{ $t('msg.login.title') }}</h3>
        <lang-select class="lang-select" effect="light"></lang-select>
      </div>
      <!--用户名-->
      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon="user"></svg-icon>
        </span>
        <el-input
          placeholder="username"
          name="username"
          type="text"
          v-model="loginForm.username"
        />
      </el-form-item>
      <!--密码-->
      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon="password"></svg-icon>
        </span>
        <el-input
          placeholder="password"
          name="password"
          v-model="loginForm.password"
          :type="passwordType"
        />
        <span class="show-pwd">
          <span class="svg-container">
            <svg-icon
              :icon="passwordType === 'password' ? 'eye' : 'eye-open'"
              @click="onChangePwdType"
            ></svg-icon>
          </span>
        </span>
      </el-form-item>

      <el-button
        type="primary"
        style="width: 100%; margin-bottom: 30px"
        :loading="loading"
        @click="handleLogin"
        >{{ $t('msg.login.loginBtn') }}</el-button>
        <div class="tips" v-html="$t('msg.login.desc')"></div>
    </el-form>
  </div>
</template>

<script setup>
import LangSelect from '@/components/LangSelect'
import { computed, ref } from "vue";
import { validatePassword } from "./rules";
import { useStore } from "vuex";
import { useI18n } from 'vue-i18n'
import { watchSwitchLang } from '@/utils/i18n'
// 数据源
const loginForm = ref({
  username: "super-admin", // super-admin
  password: "123456" // 123456
});

// 验证规则
const i18n = useI18n()
const loginRules = ref({
  username: [
    {
      required: true,
      trigger: "blur",
      message: computed(() => {
        return i18n.t('msg.login.usernameRule')
      })
    }
  ],
  password: [
    {
      required: true,
      trigger: "blur",
      validator: validatePassword()
    }
  ]
});

// 睁眼闭眼
const passwordType = ref("password");
const onChangePwdType = () => {
  if (passwordType.value === "password") {
    passwordType.value = "text";
  } else {
    passwordType.value = "password";
  }
};

// 登录
const loading = ref(false);
const loginFromRef = ref(null);
const store = useStore();
const handleLogin = () => {
  loginFromRef.value.validate((valid) => {
    if (!valid) return;
    loading.value = true;
    store
      .dispatch("user/login", loginForm.value)
      .then(() => {
        loading.value = false;
      })
      .catch((err) => {
        console.log(err);
        loading.value = false;
      });
  });
};
// 监听语言的变化，主动触发校验，以便 `message` 属性的 `value` 进行重新获取
watchSwitchLang(() => {
  loginFromRef.value.validate()
})
</script>
<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;
$cursor: #fff;

.login-container {
  height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;

    :deep(.el-form-item) {
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: rgba(0, 0, 0, 0.1);
      border-radius: 5px;
      color: #454545;
    }

    :deep(.el-input) {
      display: inline-block;
      height: 47px;
      width: 85%;
      .el-input__wrapper {
        background: none;
        box-shadow: none;
        input {
          background: transparent;
          border: 0;
          -webkit-appearance: none;
          border-radius: 0;
          padding: 12px 5px 12px 15px;
          color: $light_gray;
          height: 47px;
          caret-color: $cursor;
        }
      }
    }
    .tips{
      font-size:16px;
      color: white;
      line-height: 20px;
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0 auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}

.lang-select{
  position: absolute;
  top: 4px;
  right: 0;
  background-color: #fff;
  font-size: 22px;
  padding: 4px;
  border-radius: 4px;
  cursor: pointer;
}
</style>
